Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdebcfeba316ad5e…

MALICIOUS

PDF

45.8 KB Created: 2021-05-19 23:07:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4b50cbe521fac71cd33d7a0dda52afad SHA-1: 57d0997eb9a2459bc5facf9b152114aef0e56e3c SHA-256: fdebcfeba316ad5efd912f8cae6289b32504607f9c212090d36a4237980f3bda
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as a 'Pokemon Go Free Pokeballs' hack generator. This lure is designed to trick users into clicking the link, which leads to a known malicious domain. The presence of multiple similar lures in the document body and extracted URLs suggests a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/1094591345/pokemon-go-free-pokeballs-no-human-verification-game-hack PDF link annotation
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-home_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/robux-apk_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/tiktok-free-watermark_GM835599320.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/hack-coin-master-online-without-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.ekonomi.up45.ac.id/repository/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c32.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C32 24708 bytes
SHA-256: 9cfff3df4669c86819fdd08988d284886e6ec4bfd6b7bd1725ffe3d26c1aabc3
font_01_sfnt_off0000849e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849E 3052 bytes
SHA-256: 32d5f815b5fe6d5ffff1a175270f7c840a84f90a8706337a8fccc310f31aee6c
font_02_sfnt_off00008f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F40 18800 bytes
SHA-256: 6bb0c91faf9823c427d37169ecc683fbbdd30fcc41c7603481b1b08a896840fc

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